CT scan of an American pronghorn antelope (Antilocapra americana) after application of a contrast dye to highlight the skull and arteriesHALEY O'BRIEN, OKLAHOMA STATE UNIVERSITY CENTER OF HEALTH SCIENCES Like many other cloven hoofed mammals, the American pronghorn antelope Antilocapra americana uses a special arterial network inside its skull in order to keep a cool head. Scientists are using a combination of computerized tomography imaging and special dyes to examine how these animals avoid heat stroke. 

This image was a winner of the Federation of American Societies for Experimental Biology’s 2017 BioArt Contest

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